i am in a very similar situation to you both musically and gear wise. i make ambient /experimental / hiphop. I also have an ot and a norns.
norns does many things. it can be a sampler / synthesizer / sequencer / drum machine granulator etc. however it can only be one thing at a time so what you do and what you get out of it is up to you at a given moment. most of the scripts ( instruments ) it runs are immediate and fun to use, though i cant say there is anything yet that covers a more traditional mpc / sp sampler yet. new scripts are showing up all the time so maybe soon. i would recommend norns if you wanted to use something unfamiliar and fun that you could quickly get lost in and inspire ideas.
as far as comparing it to the ot, these are two different planets in different dimensions. the ot is designed to do many things, like norns, though unlike nonrs it is also designed to do them at once. this added depth leads to the lack of immediacy you mention. i’ve found that this is often the tradeoff with electronic music instruments. as far as user design is concerned it basically comes down to depth vs immediacy.
to me it sounds like the digitakt is the perfect fit for you no? it’s immediate and you can chop samples quickly and get very precise with your sample editing. seems like you could easily do dilla / madlib eque things ( and more ) on the digitakt. certainly much faster than norns as of now.
just to add, i love the ot. it is my favorite piece of gear. i hear you on the lack of immediacy though i’ve found that with some practice and setting up work templates, it just can’t be beat. especially for the kind of music you and i are interested in. i use norns and the ot together because they both do such different yet complimentary things. i use norns as an instrument in my setup meanwhile the ot is the main sample player / live sampler / sequncer / mixer. digitakt and norns would be a fun combo i’m sure.
i’m rambling here and i could go on forever about this. if you have more specific questions id be happy to help.